Hans Hillewaert:
Nerita albicilla
Hans Hillewaert:
Nerita aterrima
Hans Hillewaert:
Nerita orbignyana
Hans Hillewaert:
Nerita sanguinolenta
Hans Hillewaert:
Nerita japonica
Hans Hillewaert:
Smaragdia rangiana & Smaragdia souverbiana
Hans Hillewaert:
Smaragdia viridis
Hans Hillewaert:
Vitta virginea